Lightning-arrester.



C. T.. MASON. LIGHTNING ARRESTER. APPLIOATION FILED MAY 1, 1908.

94:0, 1 '76. Patented Nov. 16, 1909.

WIW/fm;

- narran eras PATENT-carton.

CHARLES MASON,

or suivrrnn, sourit cammina, .assienon fro THE SUMTER TELE- PHONE. MFG. .00., OF SUI/ITER, SOUTH CAROLINA, A CORPORATION l OF' SOUTH'.

mineures.v

Specification of Letters Patent.

LrenTnIne-annnsrnn.

appiicanon mea nay 1, 190s. seran No. 430,331.

Be it known that I, CHARLES T. MASON, a

citizenof the United States, residing at Sumter, county of Sumter, State of South Carolina, have invented certain new and use- 'ful Improvements in IiightningArresters; and I do hereby declare the following to be a full, clear, and exact description of the invention, such as will enable others skilled in the art-towhich it appertains to malte and use the same. l i

' The invention relates 'to' improvements in liglitning'arresters and more particularly to lightning. a'rresters adapted to be employed for the protection of electric circuits and instruments therein, such as telephonie circuits.

l The object vof the invention isA to provide a simplified serted in a line'circuit, to be readily renewed or replaced, and to inter-pose at all times a choke coil which will serve to divert heavy voltage currents to a grounding medium located exteriorly to said chokeieoii and separated therefrom by a dielectric, the passage of the current of heavy voltage from the coil to the grounding medium being 'materially assisted by means ot sharp' turns or angles which are provided in the coil adjacent to the grounding medium.

In the accompanying is a vertical end elevation of a lightning arrester involving the Jfeatures of this invention. Fig. 2 is a perspective view of the arrester separated trom its supporting block or base. Fig. 3 is a horizontal longitudinal section through'the arrester.

Referring to the drawings, a, indicates a coil of Wire which is formed .with fiat sides and sharp or abrupt turns or angles b, the ends of said coils being extended lo'n itudinally to afford suitable connection or the line circuit. Exteriorly' of the coil and preferably at two sides thereof, are located blocks of grounding-material. e which may be made ot carbon er any other suitable cone ducting medium and which are separated from the adjacent flat sides of the coil by a suitable dielectric. A convenient arrangement contemplates the provision of strips et insulating material i, such as mica, fiber board or the like, which is referabl ce mented or otherwise attache to. the inner faces of the lblocks e.A Preferablythe strips form of arrester adapted to be indrawings, AFigure lcent the inner faces ot the grounding mespace.

.In order to secure the parts of the arrester together to adapted'to be inserted in or removed from a supporting base, suitable spring clipsas g indicated in Figs. 2 and 3. In order to hold the clips g in position, the outer faces of the blocks e may be rooved as at f.

As thus constructed, t e arrester is adapted to be supported priate character to admit of the terminals c In order to connect the grounding medium e with the lound circuit, the base may be providedwith a binding post m which is connected with the grounding-.medium e or with the spring clips g connecting the same by Fig. 1, said conductor forming an open spring clip into which the arrester -is adapted to be inserted.

Although the invention has been described with particular reference to the convenient form of the apparatus illustrated in the drawings, vention is not limited to this form, contemplates the generic construction of anv ar- 2. A. lightning arrester, comprising acoil Vabrupt turns or angles, prou'nding blocks arran ed exteriorly ot an on opposite sides of sulating strips'inserted between the coiland the grounding blocks,l and means for remov` 'ably securin the blocks to the coil.

l 3. In a lig tning arrester, the combination are made suiiiciently narrow to allow the' sharp turns or angles of the coil to lie adja-.

diurne, but separated therefrom by impair it is to be understood that saidinarranged eX-.

to'be inserted in the line circuit andy having rammed Nov. '16, 1909.

constitute a unitary structure I are slippedpver the ends of the blocks e, as i and d being connected in the line circuit..

means of a conductor n,'as illustrated in rester involving the choke coilfhavin'g rabf comprising a coil ioo Q A @ziaria with a. coil having abrupt turns 'or angles and ai'iat face or side, of a grounding block arranged exteriorly of the coil and extending along the at face or side thereof, and means for detachably clamping said block to the coil. I 5

4. In a lightning arrester, the combination with a coil having abrupt turns or; angles and a flat face or side, of a grounding block arrangedl exteriorly of' the coil and extending along the fiat face or side thereof, and a clip to clamp the blocken the coil.

5.. A lightning arrester, comprising a coil said coil,

and spring clips adapted to secure the several parts together.

(L. Tn a lightning arrester, thecombination with a coil having abrupt turns or angles and flat sides, of separate grounding blocks arranged exteriorly of the coil at opposite .sides and extending along the flat faces -or D ends of the 1 tween the coil and the grounding medium.

sides of the coil, and ineans to detaehably secure the blocks on the coil.

7. Iii a lightning arrester, the combination with a. coil having abrupt turns or angles and dat sides, of separate grounding blocks arranged exteriorly of the coil at opposite sides and extending along the flat faces or sides of the coil, and a clip which clamps both blocks on the coil.

8. n a lightning arrester7 the combination with a coil having abrupt turns or angles and fiat sides, of separate grounding blocks arranged exterior-ly of the coil at opposite sides and extending alongvthe flat faces or` sides of the coi l,-and spring clips atopposite blocks on the coil. l In testimony whereof I atlii: my signature, i in presence of two Witnesses. I

CHARLES T. MASON. -lVitnesses y H. R. VAN PLOSUTER, E. M. Il

LLL. 'L 

